ZoneRental

Internal refactoring: Migrated four command classes from Java to Kotlin.

Kotlin Conversions

• CreateSignCommand.kt - Migrated from Java (65 → 53 lines, 18% reduction)

  • Player validation using asPlayerOrNull() extension
  • String templates for messages
  • Property access for plugin managers

• InfoCommand.kt - Migrated from Java (76 → 70 lines, 8% reduction)

  • String templates for cleaner output formatting
  • Property access for Rental fields
  • Elvis operator for null handling

• ResetCommand.kt - Migrated from Java (87 → 77 lines, 11% reduction)

  • Map indexing with type casting for refund details
  • String templates for messages and logging
  • Conditional logging with string interpolation

• ExtendCommand.kt - Migrated from Java (107 → 98 lines, 8% reduction)

  • Player validation using asPlayerOrNull() extension
  • Property access for Rental fields and config values
  • Vault economy integration preserved with null safety